A long-delayed obit on Stephen Hawking finally sees print. Quite a good summary of Hawking’s contributions, too.
Stephen Hawking, celebrity cyborg, guest star of Big Bang Theory, and sometime cosmologist who expanded our understanding of the universe — now he gets to see it all in person. Rest in peace, good sir, rest in peace.
Structural absorption by barbule microstructures of super black bird of paradise feathers, in which it is revealed that birds of paradise not only have the richest colors but also have the deepest blacks.
Way back when before Bitcoin mining soaked up the bulk of spare computing cycles, SETI@Home was the thing. Almost twenty years later, it seems the project is still ongoing.
Not surprisingly, slowdowns are the leading cause of traffic.
A car behind the slow vehicle has to brake and slow down, forcing the car behind to brake, and so forth. The slowdown spreads upstream of the slow vehicle in a wave, called a shockwave. Now, the car behind the slow vehicle will try to get around it. In tight traffic, a desperate car trying to pass the slow vehicle will inevitably pass close in front of a car in an adjacent lane. That forces the driver in that lane to brake, propagating a shockwave in that lane as well. These slowdowns will propagate sideways through other lanes as cars try to evade the slowdown and then backwards as new slowdowns are created.
Food for thought for our stop-and-go traffic caused by our public transport as well as the much vaunted 30kph speed limit of Davao City.
Dice Become Ordered When Stirred, Not Shaken. Rotational forces can put dice into ordered patterns. This experiment was done with 25,000 dice. Mind blown.